公开(公告)号：US20080056337A1

公开(公告)日：2008-03-06

申请号：US11844343

申请日：2007-08-23

申请人： Nir Tal ,  Yossi Tsfaty ,  Robert B. Staszewski ,  Gregory Lerner

发明人： Nir Tal ,  Yossi Tsfaty ,  Robert B. Staszewski ,  Gregory Lerner

IPC分类号： H04B1/40 ,  H03B21/00

CPC分类号： H03B21/02

摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. A synthesizer provides 4/3 the desired frequency fRF. This frequency is divided by two to obtain in-phase and quadrature square waves at ⅔ fRF. The in-phase signal is divided by two again to obtain in-phase and quadrature square waves at ⅓ fRF. The signals are then logically combined using XOR operations to obtain I and Q branch signals containing spectral spurs. Since the spurs are located in non-disturbing bands, they can be filtered out resulting in the desired output signal.

摘要翻译： 本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。 所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。 合成器提供4/3所需的频率f RF。 该频率除以2以在2/3 f RF RF获得同相和正交方波。 同相信号再次被二分频以在1/3f RF RF下获得同相和正交方波。 然后使用XOR操作逻辑地组合信号以获得包含光谱刺激的I和Q分支信号。 由于马刺位于非干扰波段，所以它们可被滤除，从而产生所需的输出信号。

公开(公告)号：US08121214B2

公开(公告)日：2012-02-21

申请号：US11844343

申请日：2007-08-23

申请人： Nir Tal ,  Yossi Tsfaty ,  Robert B. Staszewski ,  Gregory Lerner

发明人： Nir Tal ,  Yossi Tsfaty ,  Robert B. Staszewski ,  Gregory Lerner

IPC分类号： H04L27/10

CPC分类号： H03B21/02

摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. A synthesizer provides 4/3 the desired frequency fRF. This frequency is divided by two to obtain in-phase and quadrature square waves at ⅔ fRF. The in-phase signal is divided by two again to obtain in-phase and quadrature square waves at ⅓ fRF. The signals are then logically combined using XOR operations to obtain I and Q branch signals containing spectral spurs. Since the spurs are located in non-disturbing bands, they can be filtered out resulting in the desired output signal.

摘要翻译： 本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。 所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。 合成器提供所需频率fRF的4/3。 该频率除以2以在⅔fRF获得同相和正交方波。 同相信号再次被二分频，以在1/3fRF处获得同相和正交方波。 然后使用XOR操作逻辑地组合信号以获得包含光谱刺激的I和Q分支信号。 由于马刺位于非干扰波段，所以它们可被滤除，从而产生所需的输出信号。

公开(公告)号：US20080055010A1

公开(公告)日：2008-03-06

申请号：US11844453

申请日：2007-08-24

申请人： Gregory Lerner ,  Nir Tal ,  Robert B. Staszewski

发明人： Gregory Lerner ,  Nir Tal ,  Robert B. Staszewski

IPC分类号： H03B21/01 ,  H03B21/00

CPC分类号： H03B21/02 ,  H03K5/00006 ,  H03K5/13 ,  H03K5/1565

摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. The input signal is fed to a synthesizer timed to a rational multiplier of the RF frequency L/N fRF. The clock signal generated is divided by a factor Q to form 2Q phases of the clock at a frequency of L(N*Q) fRF, wherein each phase undergoes division by L. The phase signals are input to a pulse generator which outputs a plurality of pulses. The pulses are input to a selector which selects which signal to output at any point in time. By controlling the selector, the output clock is generated as a TDM based signal. Any spurs are removed by an optional filter.

摘要翻译： 本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。 所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。 输入信号被馈送到合成器，其被定时到RF频率L / N f RF RF的有理乘数。 所产生的时钟信号除以因子Q以在L（N * Q）f RF RF的频率处形成时钟的2Q相位，其中每相经过除法L。相位信号被输入 涉及输出多个脉冲的脉冲发生器。 脉冲被输入到选择器，其选择在任何时间点输出哪个信号。 通过控制选择器，输出时钟作为基于TDM的信号产生。 任何杂项都可以通过可选过滤器去除。

公开(公告)号：US07756487B2

公开(公告)日：2010-07-13

申请号：US11844453

申请日：2007-08-24

申请人： Gregory Lerner ,  Nir Tal ,  Robert B. Staszewski

发明人： Gregory Lerner ,  Nir Tal ,  Robert B. Staszewski

IPC分类号： H04B1/40

CPC分类号： H03B21/02 ,  H03K5/00006 ,  H03K5/13 ,  H03K5/1565

摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. The input signal is fed to a synthesizer timed to a rational multiplier of the RF frequency L/N fRF. The clock signal generated is divided by a factor Q to form 2Q phases of the clock at a frequency of L(N*Q)fRF, wherein each phase undergoes division by L. The phase signals are input to a pulse generator which outputs a plurality of pulses. The pulses are input to a selector which selects which signal to output at any point in time. By controlling the selector, the output clock is generated as a TDM based signal. Any spurs are removed by an optional filter.

摘要翻译： 本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。 所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。 输入信号被馈送到合成器，其被定时到RF频率L / N fRF的有理乘数。 所生成的时钟信号除以因子Q，以L（N * Q）fRF的频率形成时钟的2Q相位，其中每相经过除法L.相位信号被输入到输出多个 的脉冲。 脉冲被输入到选择器，其选择在任何时间点输出哪个信号。 通过控制选择器，输出时钟作为基于TDM的信号产生。 任何杂项都可以通过可选过滤器去除。

公开(公告)号：US20100099363A1

公开(公告)日：2010-04-22

申请号：US12253410

申请日：2008-10-17

申请人： Roi Faust ,  Gregory Lerner ,  Nir Tal

发明人： Roi Faust ,  Gregory Lerner ,  Nir Tal

IPC分类号： H04B7/00

CPC分类号： H04B17/21 ,  H04B17/10

摘要： A novel and useful apparatus for and method of closed loop IQ calibration for use in a transmitter. The IQ calibration mechanism functions to provide calibration of IQ imbalance in the presence of real world RF impairments. An iterative process is used to update the gain and phase mismatch values whereby the metrics are calculated in a differential manner without the need for calculation absolute imbalance values. At each iteration, updating the gain and phase mismatch estimate requires only the direction of the correction to be determined. The direction of the correction is calculated using only the differences between output power measurements. The updated gain and phase mismatch estimates are used to update an IQ correction matrix. This process is repeated until a desired stopping criterion is reached. Gear shifting is used to ensure quick convergence of the algorithm while providing the ability to achieve any desired level of accuracy.

摘要翻译： 一种用于发射机的闭环智能校准的新颖有用的装置和方法。 IQ校准机制用于在存在真实的RF损伤的情况下提供IQ不平衡的校准。 迭代过程用于更新增益和相位失配值，从而以差分方式计算度量，而不需要计算绝对不平衡值。 在每次迭代中，更新增益和相位失配估计只需要确定校正的方向。 仅使用输出功率测量之间的差异来计算校正的方向。 更新的增益和相位不匹配估计用于更新IQ校正矩阵。 重复该过程直到达到期望的停止标准。 齿轮移位用于确保算法的快速收敛，同时提供实现任何所需精度水平的能力。

公开(公告)号：US09184971B2

公开(公告)日：2015-11-10

申请号：US11739094

申请日：2007-04-23

申请人： Gregory Lerner ,  Nir Tal ,  Dan Wolberg ,  Manoneet Singh ,  Yehuda Azenkot

发明人： Gregory Lerner ,  Nir Tal ,  Dan Wolberg ,  Manoneet Singh ,  Yehuda Azenkot

IPC分类号： H04L27/00 ,  H04L27/26 ,  H04L7/04 ,  H04L7/08

CPC分类号： H04L27/2656 ,  H04L7/042 ,  H04L7/08 ,  H04L27/2657 ,  H04L27/2679 ,  H04L2027/0046 ,  H04L2027/0065

摘要： A novel and useful apparatus for and method of packet detection and carrier frequency offset estimation. The packet detection mechanism is robust to channels and sustains reasonable miss-detect (and false alarm) rates at low SNR values. The mechanism uses a modified combined cross correlation and delay and correlate scheme. A delay and correlate scheme is used in order to handle the effects of multipath while swapping integration and multiplication to increase cross-correlation factors resulting in improved sensitivity in low SNR conditions. Correlation is divided into multiple chains to generate a plurality of partial correlations to observe short patterns in the spread sequence resulting in improved performance in long multipath channels.

摘要翻译： 一种新颖有用的分组检测和载波频率偏移估计方法及方法。 分组检测机制对信道是鲁棒的，并且在低SNR值下维持合理的错误检测（和误报）速率。 该机制采用改进的组合互相关和延迟和相关方案。 使用延迟和相关方案来处理多路径的影响，同时交换积分和乘法以增加互相关因子，从而在低SNR条件下提高灵敏度。 相关性被分成多个链以产生多个部分相关性以观察扩展序列中的短模式，导致在长多径信道中的改进的性能。

公开(公告)号：US20080055009A1

公开(公告)日：2008-03-06

申请号：US11844439

申请日：2007-08-24

申请人： Gregory Lerner ,  Nir Tal

发明人： Gregory Lerner ,  Nir Tal

IPC分类号： H03B21/01 ,  H03B21/00

CPC分类号： H03B21/00

摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. The signal is input to a synthesizer timed to a rational multiplier of the RF frequency fRF. The signal is then divided to generate a plurality of phases of the divided signal. A plurality of combination signals are generated which are then multiplied by a set of weights and summed to cancel out some undersired products. The result is filtered to generate the LO output signal.

摘要翻译： 本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。 所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。 该信号被输入到合成器，其被定时到RF频率f RF RF的有理乘数。 然后将信号分割以产生分割信号的多个相位。 生成多个组合信号，然后乘以一组权重并相加以抵消一些较低产品。 滤波后产生LO输出信号。

公开(公告)号：US08724649B2

公开(公告)日：2014-05-13

申请号：US12325401

申请日：2008-12-01

申请人： Nir Tal ,  Yaniv Tzoreff ,  Moran Amidan ,  Gregory Lerner ,  Ronen Isaac ,  Roi Faust

发明人： Nir Tal ,  Yaniv Tzoreff ,  Moran Amidan ,  Gregory Lerner ,  Ronen Isaac ,  Roi Faust

IPC分类号： H04L12/413 ,  H04B3/32

CPC分类号： H04L12/413 ,  H04B3/32 ,  H04B15/02 ,  H04B2215/064 ,  H04B2215/065

摘要： A novel and useful apparatus for and method of distributed coexistence for mitigating interference in a single chip radio and/or a multi-radio (i.e. multi-transceiver) communications device. The invention enables coexistence ‘friendly’ radio IPs having frequency agility in that they are capable of shifting their clock frequencies thereby avoiding frequency bands of potential victim radios. Frequency agility on the aggressor radio side (rather than by mitigating the effect of interference on the victim radio side) prevents harmonics from the aggressor's clock scheme from falling in the operating frequency band of the victim radio, and in turn causing degradation to its performance. Each aggressor radio, based on information received from other radios, configures the root clock frequency of its RX and/or TX chain clock generation circuits.

摘要翻译： 一种用于减轻单芯片无线电和/或多无线电（即多收发机）通信设备中的干扰的分布式共存的新颖有用的装置和方法。 本发明使具有频率敏捷性的共存“友好”无线IP成为能够移动其时钟频率从而避免潜在的受害者无线电的频带的共存的无线IP。 侵略者无线电侧的频率敏捷性（而不是通过减轻干扰对受害者无线电侧的影响）可以防止侵略者时钟方案的谐波落入受害者无线电的工作频带，从而导致其性能下降。 每个侵略者无线电设备基于从其他无线电接收的信息，配置其RX和/或TX链时钟生成电路的根时钟频率。

公开(公告)号：US08175549B2

公开(公告)日：2012-05-08

申请号：US12253410

申请日：2008-10-17

申请人： Roi Faust ,  Gregory Lerner ,  Nir Tal

发明人： Roi Faust ,  Gregory Lerner ,  Nir Tal

IPC分类号： H04B17/00 ,  H04B1/04

CPC分类号： H04B17/21 ,  H04B17/10

摘要： A novel and useful apparatus for and method of closed loop IQ calibration for use in a transmitter. The IQ calibration mechanism functions to provide calibration of IQ imbalance in the presence of real world RF impairments. An iterative process is used to update the gain and phase mismatch values whereby the metrics are calculated in a differential manner without the need for calculation absolute imbalance values. At each iteration, updating the gain and phase mismatch estimate requires only the direction of the correction to be determined. The direction of the correction is calculated using only the differences between output power measurements. The updated gain and phase mismatch estimates are used to update an IQ correction matrix. This process is repeated until a desired stopping criterion is reached. Gear shifting is used to ensure quick convergence of the algorithm while providing the ability to achieve any desired level of accuracy.

摘要翻译： 一种用于发射机的闭环智能校准的新颖有用的装置和方法。 IQ校准机制用于在存在真实的RF损伤的情况下提供IQ不平衡的校准。 迭代过程用于更新增益和相位失配值，从而以差分方式计算度量，而不需要计算绝对不平衡值。 在每次迭代中，更新增益和相位失配估计只需要确定校正的方向。 仅使用输出功率测量之间的差异来计算校正的方向。 更新的增益和相位不匹配估计用于更新IQ校正矩阵。 重复该过程直到达到期望的停止标准。 齿轮移位用于确保算法的快速收敛，同时提供实现任何所需精度水平的能力。

公开(公告)号：US07787630B2

公开(公告)日：2010-08-31

申请号：US11464871

申请日：2006-08-16

申请人： Gregory Lerner ,  Nir Tal ,  Ofer Friedman

发明人： Gregory Lerner ,  Nir Tal ,  Ofer Friedman

IPC分类号： H04H20/47

CPC分类号： H04H40/54

摘要： A novel system and method for correcting the residual phase offset between a recovered pilot signal and the received stereo signal. The invention uses a Costas loop as an auxiliary loop in addition to the pilot recovery phase locked loop (PLL) to lock onto the stereo component itself. This auxiliary loop functions to generate a pilot to stereo component phase correction signal that is added to the stereo carrier phase The resultant phase is used to generate the recovered pilot carrier used to demodulate the stereo MPX signal. The Costas loop is activated together with the main pilot recovery PLL that locks onto the pilot tone in the demodulated MPX signal. The auxiliary Costas loop is operative to track and determine a residual phase error of up to several degrees.

摘要翻译： 一种用于校正恢复的导频信号和接收的立体声信号之间的残余相位偏移的新型系统和方法。 本发明除了导频恢复锁相环（PLL）之外还使用Costas回路作为辅助回路来锁定在立体声组件本身上。 该辅助回路用于产生加到立体声载波相位的导频到立体声分量相位校正信号。所得到的相位用于产生用于解调立体声MPX信号的恢复的导频载波。 科斯塔斯环路与主导频恢复PLL一起被激活，锁相在解调的MPX信号中的导频音上。 辅助科斯塔斯循环用于跟踪并确定多达几度的残余相位误差。